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tbm bertha seattle tunnel talk

Half-way milestone for TBM Bertha - TunnelTalk.com

Seattle Tunnel Partners completes a third round of routine maintenance as TBM Bertha passes the half-way mark on the way to a scheduled Summer 2017 breakthrough on the Alaskan Way Viaduct Replacement Tunnel.

Bertha bearing to get 86-tonne reinforcement - tunneltalk.com

Seattle Tunnel Partners, the construction joint venture of Dragados and Tutor Perini, announce TBM Bertha’s new main bearing assembly is to be reinforced with 86 tonne of new steel ribs and plates

Tbm Bertha Seattle Tunnel Talk - Image Results

More Tbm Bertha Seattle Tunnel Talk images

Bertha (tunnel boring machine) - Wikipedia

Bertha was a 57-foot-diameter (17.4 m) tunnel boring machine built specifically for the Washington State Department of Transportation's (WSDOT) Alaskan Way Viaduct replacement tunnel project in Seattle.